Small package microcontroller with pre-driver
The TX03 series of ARM Cortex-M3-based microcontrollers from Toshiba Electronics Europe, has been extended with the introduction of the TMPM37AFSQG – a new IC that incorporates Toshiba’s Vector Engine Plus (VE+) coprocessor and a pre-driver to enable brushless DC motor control. The TMPM37AFSQG pre-driver can directly drive MOSFETs for complementary 3-phase PWM output with a minimum unit of 25ns.
This makes the microcontroller well suited for controlling small motors, server fans, small cooling fans, vent fans, electric fans, ceiling fans, pumps and toys. The microcontroller core is powered from the pre-driver voltage enabling the use of a single power supply to drive the entire device.
Equipped with an ARM Cortex-M3 core capable of running at speeds of up to 40MHz, a 12-bit AD converter and an onboard vector control platform, the TMPM37AFSQG enables highly efficient, low vibration and low noise motor control, greatly improving motor performance.
Also integrated into the device is an op-amp, essential for current detection using a single shunt resistor and a comparator for over-current detection. All functions have been incorporated in a small package (VQFN32 5 x 5mm, 0.5mm pitch), designed to minimise mount space.
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